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Work hardening of Duratherm 600 cobalt superalloy using repetitive corrugation and straightening process

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Abstract

In this paper, the effect of repetitive corrugation and straightening (RCS) process on hardness of Duratherm 600 superalloy has been investigated. To do so, the RCS was carried out until 25 cycles using multiple teeth corrugative setup that the rotation of sample with 90° between cycles was utilized. The results show that the increasing of cycle number enhances the value of hardness. Also, the microstructures of samples are an evidence of slipbands formation during RCS showing the applied strain on the material. As a result, the increasing of hardness can be attributed to formation of subgrains, LAGBs and hcp martensitic plates at large strains.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Sharif University of Technology, Azadi Ave., Tehran, Iran, P. O. Box 11365-9466

    H. Sheikh

  2. Department of Materials Science and Engineering, Malek Ashtar University of Technology, Shahin, Shahr, Iran, P. O. Box 83145/115

    E. Paimozd & S. M. Hashemi

Authors
  1. H. Sheikh
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  2. E. Paimozd
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  3. S. M. Hashemi
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Correspondence to H. Sheikh.

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Sheikh, H., Paimozd, E. & Hashemi, S.M. Work hardening of Duratherm 600 cobalt superalloy using repetitive corrugation and straightening process. Russ. J. Non-ferrous Metals 51, 59–61 (2010). https://doi.org/10.3103/S1067821210010116

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  • DOI: https://doi.org/10.3103/S1067821210010116

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